-17.14% is the change from 70 to 58
Calculation steps:
[( 58 - 70 ) ÷ 70] x 100 = -17.14%
Formula
Percentage change = [(58 - 70) / 70] x 100
Subtract the new number by the original number
58 - 70 = -12
-12 ÷ 70 = -0.17142857142857143
-0.17142857142857143 x 100 = -17.14%